Hardness reversal in severely deformed automotive Al-Mg-Si alloys

Hu, X.J.; Li, T.Y.; Lai, Y.X.; Xiang, X.M.; Chen, J.H.

doi:10.1016/j.jallcom.2024.173515

Journal of Alloys and Compounds

2024

DOI: 10.1016/j.jallcom.2024.173515

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Hardness reversal in severely deformed automotive Al-Mg-Si alloys

X.J. Hu,

T.Y. Li,

Y.X. Lai

et al.

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Cited by 6 publications

References 45 publications

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Viscosity Calculation for Al–Si–Mg–Fe System through CALPHAD Method

Fu,

Luo,

Liu

et al. 2024

Adv Eng Mater

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Viscosity is a crucial parameter affecting the fluidity of metal melts, which directly influences the founding properties of Al alloys. However, obtaining viscosity measurement data is difficult for metal melts, and the viscosity prediction for ternary and multicomponent alloys would provide the significant data for the selection of process parameters. This study compares the applicability of the Hirai model, SDS model, and R‐K function for viscosity calculations in the sub‐binary systems of Al–Si–Mg–Fe alloys. R‐K function shows the best agreement with experimental data. However, the SDS model shows lower relative error than Hirai model, which would play an important role in those systems lacking experimental data to predict the viscosities. Ultimately, a database capable of predicting viscosity values for the entire composition and temperature range of the Al–Si–Mg–Fe system is established using the CALPHAD method. Viscosity parameters for Al–Si, Al–Mg, Al–Fe, Mg–Si, and Mg–Fe are evaluated and optimized through the R‐K derivation, corroborated with existing experimental data. Using the R‐K function, successful extrapolation and prediction of viscosity for the Al–Si–Mg–Fe ternary and quaternary systems are achieved, with a mean square error between predicted and experimental values of only 0.7%, demonstrating the successful application of the Al–Si–Mg–Fe database for viscosity prediction.

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Viscosity Calculation for Al–Si–Mg–Fe System through CALPHAD Method

Fu,

Luo,

Liu

et al. 2024

Adv Eng Mater

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Hot compression deformation behavior and microstructure evolution of Al-0.5Mg-0.4Si alloy

Ma,

Shu,

et al. 2024

Journal of Alloys and Compounds

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Fracture toughness and fracture mechanism of Al-Mg-Si alloy sheet subjected to pre-cryorolling and subsequent bake hardening

Xing,

Lei,

Wang

et al. 2024

Journal of Alloys and Compounds

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Hardness reversal in severely deformed automotive Al-Mg-Si alloys

Cited by 6 publications

References 45 publications

Viscosity Calculation for Al–Si–Mg–Fe System through CALPHAD Method

Viscosity Calculation for Al–Si–Mg–Fe System through CALPHAD Method

Hot compression deformation behavior and microstructure evolution of Al-0.5Mg-0.4Si alloy

Fracture toughness and fracture mechanism of Al-Mg-Si alloy sheet subjected to pre-cryorolling and subsequent bake hardening

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